Cheap flights from London Heathrow Airport to San Diego from £289
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to San Diego departing on 21/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London Heathrow Airport to San Diego
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
British Airways flights from London Heathrow Airport to San Diego
Our best British Airways deals on London Heathrow Airport to San Diego flight tickets
Finnair flights from London Heathrow Airport to San Diego
Our best Finnair deals on London Heathrow Airport to San Diego flight tickets
See travel insights to San Diego from
How to get the cheapest flight ticket from London Heathrow Airport to San Diego
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between London Heathrow Airport and San Diego?
What is the cheapest month to fly to San Diego?
If you don’t want to visit San Diego in January, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £508.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from London Heathrow Airport to San Diego is on a Friday when prices can be found for as low as £582. Flights from London Heathrow Airport to San Diego on a Sunday will generally be more expensive and average around £628. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to San Diego?
At midday is the cheapest time of day to fly from London Heathrow Airport to San Diego when you can find flight prices for as low as £562. Flying to San Diego at midday is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around £650. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest London Heathrow to San Diego flight route?
Fly from London Heathrow to San Diego for the best London Heathrow - San Diego flight prices
How far in advance should I book a flight to San Diego?
You are more likely to see cheaper flights to San Diego from London Heathrow Airport when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around £594 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from London Heathrow Airport for as low as £518 on momondo.
What cabin class options are available on London Heathrow to San Diego flights?
There are 3 cabin classes available to choose from on London Heathrow to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from London Heathrow to San Diego?
WestJet, Aer Lingus, and Lufthansa are the most popular carriers operating from London Heathrow to San Diego
Which airlines fly to San Diego?
British Airways, Finnair and Virgin Atlantic are the top three most popular airlines that fly to San Diego from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 67% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 11 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
How many flights depart from London Heathrow Airport to San Diego on average per day?
The number of flights available between London Heathrow Airport and San Diego is 6 per day as of March 2025. The most frequent departure time is 12:00, with 100% of daily flights leaving in the afternoon.
How many flights depart from London Heathrow Airport to San Diego on average per week?
44 flights are operational weekly from London Heathrow Airport to San Diego as of March 2025. The most popular departure day for this route is Sun, with 20% of flights per week taking off on this day.
When to book flights from London Heathrow Airport to San Diego
Cheap London Heathrow Airport to San Diego (LHR to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to San Diego
Best price found | £289 |
|---|---|
Fastest flight time | 11h 05m |
Direct flights | Mon, Tue, Thu, Fri, Sat and Sun |
Airports in San Diego | 1 airport |
How far is London Heathrow to San Diego by plane?
London Heathrow and San Diego are 5468.7 mi apart from one another. In terms of flight time, this usually takes a little over 11h 05m.
When did momondo last update prices for flights from London Heathrow Airport to San Diego Airport?
Prices for flights from London Heathrow Airport to San Diego Airport were last updated today.
How many operators does momondo search for flights from London Heathrow Airport to San Diego Airport?
As of March 2025, there are 11 operators available to choose from for flights from London Heathrow Airport to San Diego Airport.
How old do you have to be to fly from London Heathrow Airport to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London Heathrow Airport to San Diego?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to San Diego is Boeing 787-8 Dreamliner, representing 41.86% of all bookings. The subsequent popular models are Airbus A350-1000 at 38.01%, Boeing 777-300ER at 14.19%, and Boeing 777-300 at 2.86%.
What is the most popular airline from London Heathrow Airport to San Diego?
Based on momondo bookings for flights between London Heathrow Airport and San Diego, the leading airline is British Airways, making up 65% of the total bookings. Other popular airlines include Iberia with 8%, Finnair with 7%, and Virgin Atlantic with 7%.
Best airlines flying from London Heathrow Airport to San Diego
Compare and see reviews for airlines that fly from London Heathrow Airport to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £385 | Free Cancellation | Rating 7.4 1,425 reviews | |||
| PriceFrom £411 | Free Cancellation | Rating 6.6 6,713 reviews | |||
| PriceFrom £415 | Free Cancellation | Rating 7.4 635 reviews | |||
| PriceFrom £416 | Free Cancellation | Rating 7.0 8,998 reviews | |||
| PriceFrom £427 | Free Cancellation | Rating 6.7 6,958 reviews | |||
| PriceFrom £428 | Free Cancellation | Rating 7.4 8,612 reviews | |||
| PriceFrom £435 | Free Cancellation | Rating 7.6 1,267 reviews | |||
| PriceFrom £440 | Free Cancellation | Rating 7.8 1,321 reviews | |||
| PriceFrom £456 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom £475 | Free Cancellation | Rating 7.0 2,653 reviews |
Finnair Flights From London Heathrow Airport to San Diego
Finnair flies from London Heathrow Airport to San Diego around 1 time per week, with 1,267 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London Heathrow Airport to San Diego in the last 72 hours was £563 (round-trip), much lower than the average airfare cost of £773 for Finnair flights on this route.
American Airlines Flights From London Heathrow Airport to San Diego
Another popular option for London Heathrow Airport to San Diego flights is American Airlines (7.2/10, 10,000 ratings). American Airlines flies from London Heathrow Airport to San Diego around 13 times per week, with deals starting from £590 round-trip and rising to an average price of around £695.
Travelling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to San Diego?
Finding the right flight to San Diego from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Diego quick and easy, saving you time and money.
Can I find flights from London to San Diego with flexible booking policies on momondo?
All flight searches from London to San Diego on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from London to San Diego?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to San Diego.
I’m not ready to book a flight from London to San Diego right now. Can momondo alert me if prices change?
Price alerts on flights to San Diego from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.